NEW mast SectionDeveloped with Mike McNamara and Mike Holmes, the Seldén Cumulus section is ideally suited to the Albacore. The new section is lighter than the orginal sleeved ’D’ section, with an improved taper, creating a more DYNAMIC rig. With similar ’static’ stiffness, existing mainsail luff curves will suit, with the speed and reward coming from the more user-friendly section. The Cumulus rig won the 2004 National Championships and is the standard supplied mast with all new Speed Sails boats.
Our 2633 boom section, with outboard end cutaway for minimum weight and all important water clearance, has the ultimate stiffness.
Results
- World Championships ’01 – 2nd
- National Championship 2004 – 1st
Why Seldén?Choose a Seldén mast and you will find many performance enhancing features unique to our products, for example: - The Seldén tapering system ensures that our tapers are minimum size and weight. This gives low windage, centre of gravity and topmast weight. This maximises your speed by enabling the topmast to react quickly to gusts and waves giving better acceleration, a smoother ride upwind and, ultimately, more races won!
- Automated welding keeps excess heat out of the taper for guaranteed consistency and performance. The weld produced is so perfect that there is no need to mechanically grind the weld (which can induce inconsistencies). This means that once we have finalised a winning design, you can be sure that your spar will perform identically to the champions.
- All masts are heat treated in our purpose-designed oven. This artificial hardening ensures that you get maximum performance from the high performance aluminium alloy.
- Our spars pass through a purpose-developed bead-peening machine. This gives the mast a perfect satin finish that dramatically improves fatigue properties, giving you a mast that will perform reliably for many years.
- Top quality fittings such as our fully adjustable spreader bracket and highly durable cast gooseneck ensure speed and reliability on the racecourse.
Sections Available
Mast Specification
- D
, Cumulus
As standard, all fittings below deck are supplied loose for dealer to fit to suit the boat’s sheerline, and customer’s specific requirements. Mast is supplied with plain heel plug and all fittings including fully adjustable spreaders. Mast is fitted with drawlines for fast attachment of rigging.
Boom Specification
- 2633
Standard boom includes inboard and outboard end with sheave, cutaway outboard end, and three boom slides allowing the blocks to be attached directly to the boom (no need for cumbersome shackles!).
Spinnaker Pole Specification
Rigging Specification
Rigging pack comprises kevlar main halyard with cleat, wire jib halyard with 3 strand polyester tail, tee terminal shrouds, and forestay, all supplied overlength for dealer completion to customer specification.
Tuning Tips
| Spreader length | 400mm (side of mast to shroud) | | Spreader deflection | 140mm (aft side of mast to straight line between shrouds) | | Mast Rake | 7195mm Light wind, decreasing to 6935mm strong wind | | Rig tension | Leeward shroud just slack upwind | | Pre bend | 40mm (light wind) | | Mast step position | 3260mm outside transom to back of mast | | Jib Fairlead position | 510mm from centreline | | Vang | Slack in light winds increasing to hold leach up when boom is over quarter in strong winds. |
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